transitive and intransitive. To focus beforehand or in advance; spec. to make or adjust (a lamp, bulb, etc.) to ensure automatic focusing of the…
| 单词 | θ80582 |
| 释义 | the world > matter > light > artificial light > an artificial light > artificial light defined by light-source > electric light > [verb (transitive)] > make or adjust specific fixture or bulb (1) prefocus1951 transitive and intransitive. To focus beforehand or in advance; spec. to make or adjust (a lamp, bulb, etc.) to ensure automatic focusing of the… |
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